[C320-list] Glass hatch v Beth

[Michael Ferguson]

Thanks everyone will let you know how it turns outMichael

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  On Wed, Jul 5, 2017 at 1:28 PM, Dean Vermeire<dean at vermeire.us> wrote:   Rather than using a table saw, I'd suggest cutting the new piece slightly oversize (perhaps 1/4").  Then, use double-sided tape to stick the new piece to the old one with the new one sticking out a little all the way around.  Then, use a router with a pattern bit (preferably in a router table) to trim the new piece exactly to the shape of the old one.  As Scott said, be careful not to burn or melt the acrylic.

If you do not have a router table, make friends with a woodworker.  :)

Dean Vermeire

-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Scott Westwood
Sent: Wednesday, July 05, 2017 12:11 PM
To: C320-List at Catalina320.com; jbrown5093 at gmail.com
Subject: Re: [C320-list] Glass hatch v Beth

I can only speak to my experience.  I recently replaced the "lens" in the cabin top Bowmar hatch.  Not the one over the v-berth.  The replacement was about $100.  Being cheap... I went to a local marina that buys the smoked acrylic material in 4X8 ft sheets and they sold some to me for about $7-8 sq/ft.  Final cost was about $20.  I took the old one with me to make sure of thickness etc... and they used the old one as a template for cutting the piece on the table saw.  The result was a piece that only needed the corners rounded and the holes cut for the dogs.  Saved me much time.  If you go this route use sharp tools to cut it. Go slow and try not to melt your way through.  I used the old one to practice cutting.  Easier that I thought.
To remove the old one I used a sharp/new utility knife.  I used one of those that break off.  You can extend the blade out a good 2-3 inches if needed. Start with less blade and add length as needed. Came out easier than I thought.  Hardest part was cleaning up the remaining sealant.  Wasn't that hard though.  I took care not to scratch the aluminum frame.  I didn't really care if I scratched the old lens.  Tried not to but...
Once I had the new acrylic (or whatever the material was... can't remember) piece ready to go in, I cleaned all the edges and frame with a good cleaner to get any oils off.(finger prints etc...).
Here is where I made a mistake.  I did not do my homework to find out the proper sealant.  I had some bytle tape that I use for most anything. It is my go-to sealant.  It sticks to anything.  I now know that "anything" does NOT mean acrylic lenses.  Total waste of time. Dug all that out and (in exchange for some electrical connectors) a friend gave me the last of a tube of some black 763 or whatever sealant that was meant for sealing hatches etc....  I don't have it near and I had to discard it afterwards so can't tell you exactly what it was.  Do some checking and I am sure somebody can direct you to the proper sealant.
I could not use the actual pointed end of the caulking gun so I had to manually mash the sealant in.  If you have a small enough hole on a new tube, and take care, I think you can get a smooth bead around the frame.  You need to take care not to "seal" the rubber gasket into the frame.

Because I could not get a small bead I chose to tape off the top of the lens and frame.  Made cleanup so much easier.  Then I mashed sealant in the gap between the lens and frame.  Smoothed it off and pulled up the tape.  You need to let it setup (of course) before you dog it down.  I placed a light weight on top to ensure a good seal and so it couldn't pop up.  Not sure what you would do on the v-berth??  Light bungees ??
FWIW, My issue was the lens was cracked at one of the dogs when we bought the boat and it leaked when you pulled the duct-tape off.  Putting the stress on the lens is not a good design but....
I have not been to the boat since it rained so I have no idea if it leaks.  Don;t see how now.... I will know this Friday though.  Going on a weeklong trip, leaving Saturday.  Rain is in the forecast too so I should find out.
And, sorry, but I didn't take pics.  was in a hurry.
Still learning.  Good luck.


Thanks,
Scott Westwood scottwestwood at bellsouth.net H (919)-362-8538    C (919)-618-7185 

      From: Michael Ferguson <coralman at bellsouth.net>
 To: "jbrown5093 at gmail.com" <jbrown5093 at gmail.com>; "C320-List at Catalina320.com" <C320-List at Catalina320.com>
 Sent: Wednesday, July 5, 2017 12:24 PM
 Subject: [C320-list] Glass hatch v Beth
  
Sorry for the 2nd request but not sure if anyone ever answered due to the fact that I did not have any mail for the last week to check. But has anyone replaced the v-berth glass hatch. I am trying to figure out how to remove the glass out of its frame and rubber seal without doing damage. Thanks in advance MichaelHull 169

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  On Tue, Jul 4, 2017 at 3:38 PM, Jbrown5093<jbrown5093 at gmail.com> wrote:  Fouled prop (growth, etc.).
Jim Brown. 973

Sent from my iPad

> On Jul 3, 2017, at 5:43 PM, Onat Dogruer <onat_s at yahoo.com> wrote:
> 
> Hello all,
> We have the Yanmar 3GM30F(EU) on our 1998 and this weekend I noticed a problem with throttle. There is no RPM pick up once I pass 2200 and then when I push the trottle all the way, it only pushes out 2860 rpm. I first thought the cable was slipping so I checked both the helm arm and on governor arm side connections. It looks normal. I then tried it in neutral and noticed that I can get full 3660 rpm on neutral (checked with a laser tachometer) Went out for a short cruise and again noticed that I can't get more than 2800 in Forward. 
> Also fuel looks clean. I am going to change the fuel filter regardless. The issue seem to be only when we are on forward which doesn't make any sense.
> What am I missing here? Any thoughts?
> 
> 
> Sent from my T-Mobile 4G LTE Device